library/HTMLPurifier/ConfigSchema/ValidatorAtom.php

   1 <?php
   2
   3 /**
   4  * Fluent interface for validating the contents of member variables.
   5  * This should be immutable. See HTMLPurifier_ConfigSchema_Validator for
   6  * use-cases. We name this an 'atom' because it's ONLY for validations that
   7  * are independent and usually scalar.
   8  */
   9 class HTMLPurifier_ConfigSchema_ValidatorAtom
  10 {
  11
  12     protected $context, $obj, $member, $contents;
  13
  14     public function __construct($context, $obj, $member) {
  15         $this->context     = $context;
  16         $this->obj         = $obj;
  17         $this->member      = $member;
  18         $this->contents    =& $obj->$member;
  19     }
  20
  21     public function assertIsString() {
  22         if (!is_string($this->contents)) $this->error('must be a string');
  23         return $this;
  24     }
  25
  26     public function assertIsBool() {
  27         if (!is_bool($this->contents)) $this->error('must be a boolean');
  28         return $this;
  29     }
  30
  31     public function assertIsArray() {
  32         if (!is_array($this->contents)) $this->error('must be an array');
  33         return $this;
  34     }
  35
  36     public function assertNotNull() {
  37         if ($this->contents === null) $this->error('must not be null');
  38         return $this;
  39     }
  40
  41     public function assertAlnum() {
  42         $this->assertIsString();
  43         if (!ctype_alnum($this->contents)) $this->error('must be alphanumeric');
  44         return $this;
  45     }
  46
  47     public function assertNotEmpty() {
  48         if (empty($this->contents)) $this->error('must not be empty');
  49         return $this;
  50     }
  51
  52     public function assertIsLookup() {
  53         $this->assertIsArray();
  54         foreach ($this->contents as $v) {
  55             if ($v !== true) $this->error('must be a lookup array');
  56         }
  57         return $this;
  58     }
  59
  60     protected function error($msg) {
  61         throw new HTMLPurifier_ConfigSchema_Exception(ucfirst($this->member) . ' in ' . $this->context . ' ' . $msg);
  62     }
  63
  64 }
  65
  66 // vim: et sw=4 sts=4